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The path space of a directed graph

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posted on 2024-11-16, 09:17 authored by Samuel Webster
We construct a locally compact Hausdorff topology on the path space of a directed graph E and identify its boundary-path space ∂E as the spectrum of a commutative C*-subalgebra DE of C*(E). We then show that ∂E is homeomorphic to a subset of the infinite-path space of any desingularisation F of E. Drinen and Tomforde showed that we can realise C*(E) as a full corner of C*(F), and we deduce that DE is isomorphic to a corner of DF. Lastly, we show that this isomorphism implements the homeomorphism between the boundary-path spaces.

Funding

Operator algebras associated to groupoids

Australian Research Council

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History

Citation

Webster, S. B. G. (2014). The path space of a directed graph. Proceedings of the American Mathematical Society, 142 (1), 213-225.

Journal title

Proceedings of the American Mathematical Society

Volume

142

Issue

1

Pagination

213-225

Language

English

RIS ID

84442

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